20112300

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:230

約数の個数: 180

約数和(自身を含む): 70578816

約数和(自身を除く): 50466516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 25, 26, 27, 30, 36, 39, 45, 50, 52, 54, 60, 65, 75, 78, 81, 90, 100, 108, 117, 130, 135, 150, 156, 162, 180, 191, 195, 225, 234, 260, 270, 300, 324, 325, 351, 382, 390, 405, 450, 468, 540, 573, 585, 650, 675, 702, 764, 780, 810, 900, 955, 975, 1053, 1146, 1170, 1300, 1350, 1404, 1620, 1719, 1755, 1910, 1950, 2025, 2106, 2292, 2340, 2483, 2700, 2865, 2925, 3438, 3510, 3820, 3900, 4050, 4212, 4775, 4966, 5157, 5265, 5730, 5850, 6876, 7020, 7449, 8100, 8595, 8775, 9550, 9932, 10314, 10530, 11460, 11700, 12415, 14325, 14898, 15471, 17190, 17550, 19100, 20628, 21060, 22347, 24830, 25785, 26325, 28650, 29796, 30942, 34380, 35100, 37245, 42975, 44694, 49660, 51570, 52650, 57300, 61884, 62075, 67041, 74490, 77355, 85950, 89388, 103140, 105300, 111735, 124150, 128925, 134082, 148980, 154710, 171900, 186225, 201123, 223470, 248300, 257850, 268164, 309420, 335205, 372450, 386775, 402246, 446940, 515700, 558675, 670410, 744900, 773550, 804492, 1005615, 1117350, 1340820, 1547100, 1676025, 2011230, 2234700, 3352050, 4022460, 5028075, 6704100, 10056150, 20112300]

約数ペア:

[(1, 20112300), (2, 10056150), (3, 6704100), (4, 5028075), (5, 4022460), (6, 3352050), (9, 2234700), (10, 2011230), (12, 1676025), (13, 1547100), (15, 1340820), (18, 1117350), (20, 1005615), (25, 804492), (26, 773550), (27, 744900), (30, 670410), (36, 558675), (39, 515700), (45, 446940), (50, 402246), (52, 386775), (54, 372450), (60, 335205), (65, 309420), (75, 268164), (78, 257850), (81, 248300), (90, 223470), (100, 201123), (108, 186225), (117, 171900), (130, 154710), (135, 148980), (150, 134082), (156, 128925), (162, 124150), (180, 111735), (191, 105300), (195, 103140), (225, 89388), (234, 85950), (260, 77355), (270, 74490), (300, 67041), (324, 62075), (325, 61884), (351, 57300), (382, 52650), (390, 51570), (405, 49660), (450, 44694), (468, 42975), (540, 37245), (573, 35100), (585, 34380), (650, 30942), (675, 29796), (702, 28650), (764, 26325), (780, 25785), (810, 24830), (900, 22347), (955, 21060), (975, 20628), (1053, 19100), (1146, 17550), (1170, 17190), (1300, 15471), (1350, 14898), (1404, 14325), (1620, 12415), (1719, 11700), (1755, 11460), (1910, 10530), (1950, 10314), (2025, 9932), (2106, 9550), (2292, 8775), (2340, 8595), (2483, 8100), (2700, 7449), (2865, 7020), (2925, 6876), (3438, 5850), (3510, 5730), (3820, 5265), (3900, 5157), (4050, 4966), (4212, 4775)]